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Finding the Fourth Proportional to 279,068.83, 418,121.80 and 152,799.96

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Solution

The fourth proportional to 279,068.83, 418,121.80 and 152,799.96 is: 228,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,068.83 : 418,121.80 = 152,799.96 : x
  2. Step 2: Convert to fraction form
    279,068.83/418,121.80 = 152,799.96/x
  3. Step 3: Cross multiply
    279,068.83x = 418,121.80 × 152,799.96
  4. Step 4: Simplify right side
    279,068.83x = 63,888,992,887.82
  5. Step 5: Solve for x
    x = 63,888,992,887.82/279,068.83
  6. Step 6: Final answer
    x = 228,936.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.